Mechanism for forming glassware



W. J. MILLER.

MECHANISM FOR FORMING GLA'SSWARE.

APPLICATION FILED DEC. 16, 1918.

Patented Dec. 20, 1921.

6 SHEETS-SHEET I.

INVENTOR,

w 11' N is 'KITDILWORTII W. MILLER. MECHANISM FOR FORMING GLASSWARE.

APPLICATION FILED DEC. 16. I918- Patented Dec. 20, 1921.

6 SHEETS-SHEET 2- INVENTOI.

WITNESS :9

w. J. MILLER. MECHANISM FOR FORMING GLASS'WARE.

APPLICATION FILED DEC. W. 1918- Patented Dem-20, 1921.

I 6 SHEETS-SHEET 3.

W QfVEIN'IZOI; W

wrrucss W. J. MILLER.

MECHANISM FOR FORMING GLASSWARE.

APPLICATION men 050.16. 1918.

1 ,4;OO,621,' Patented Dec. 20, 1921.

6 SHEETS-SHEET 4- M M waaw W. J. MILLER.

MECHANISM FOR FORMING GLASSWARE.

APPLICATION. FILED DEC-16,1918.

1 ,--];OO,62 1 Patented Deo- 20, 1921.

6 SHEETS SHEET 5- WITNESS pin 07f W. I. MILLER.

MECHANISM FOR FORMING GLASSWARE- APPLICATION FILED DEC. I6. I918.

1,400,621, Patented Dec. 20, 1921.

6 SHEETS-SHEET 6.

INVENTOR.

onrrno stares PATENT OFFICE.

WILLIAM 3'. HELLER, F SWISS'VALE BOROUGH, PENNSYLVANIA.

MECHANISM FOR- .FORMING GLASSWARE.

Application filed December 16, 1918.

To all whom it may concern.

lie it known that 1, "WILLIAM J. liltnnnn, a citizen of the UnitedStates. and residing in the borough of Swissvale, in the county ofAllegheny and State of Pennsylvania, have invented or discovered new anduseful provements in Mechanism for Forming Glassware, of which thefollowing is a speciflcation.

My invention consists in a new and improved machine for pressingglassware, and means for mounting the same in connection with the tankor other container of molten glass.

The object in view is the provision auto matic mechanism of thischaracter wl iich will produce pressed glassware at great iced and inlarge quantities, thus greatly reducing the cost of manufacture andincreasing the out put.

Generally speaking, the machine consists of a series of molds, pivotallymounted and flexibly connected together; means for moving said seriesintermittently to bring said molds in turn into the pressing position;means for shearing the glass deposited into the molds; pressingmechanism, and means for tilting the molds to discharge the pr sed ware.V

l also show means for increasing or decreasing' the number of molds inthe series, as may be required.

l also show a new and improved mounting for the machine in connectionwith glass tank, which greatly facilitates the operation of the machine.

Novel features of construction and arrangement of parts will appear fromthe following description.

In the accompanying drawings, which are intended merely to illustrate apractical embodiment of the principles of my invention without limitingthe scope of the same to the construction shown, Figure l is a sideelevation of a machine, embodying my invention, shown mounted on thefront of a gl tank; 2 is a top plan View of; the sm 9, the tank beingshown in broken horizontal section; Fig. 8 is an enlarged longitudinalsection taken along the line Ill-Ill in Fig. 2; Fig. i is an enlargedcross section taken along the line lV--lV in ig. 2; is a partial sideelevation of the machine with the left land cover plates removed; Fig. 6is an S iecificatiou of Letters Patent.

Patented. Dec. 20, 1921.

Serial No. 266,910.

enlarged broken vertical section showing in detail the pressing plungerand follower, the section being taken at right angles to that in Fig. 4:and the mechanism being shown depressed to engage one of the molds; Fig.7 is a plan View of one of the molds, showing its mounting in theflexible side chains; Figs. 8, 9, l0 and 11 are, respectively, insideface views of the lower left hand cover plate, the lower right handcover plate, the upper left hand cover plate and the upper right handcover plate; Fig. 12 is a detailed view in plan showing the dependingloop of the mold car rier and the stirrup mounted thereon, and Fig. 13is a plan view on smaller scale than Fig. 2 and better illustrating themounting of the machine in relation to the tank.

Referring to the accompanyin drawings, I will first proceed to describethe structure of the machine itself, and then its mounting in relationto the glass tank.

A represents a pair of side frames connected together by means of ahorizontal bed block B through which and through said frames pass thestay bolts 1, the ends of said bolts being seated'in countersunkrecesses in the outer faces of the frames. 2 represents vertical flangesat either side of the block forming horizontal tracks. Cisa shaftjournaled transversely of the machine in the frames and block, and ateither end, outside of said frames, said shaft has rigidly mountedthereon a cam 8 or d, the cam 3 being wider than the cam 4: and providedwith a perimetral flange 5 to prevent the accidental slipping off of theeccentric strap to be described. Outside of the cam 3 the shaft C isprovided with a worm wheel 6 meshing with the worm collar 7 on thedriven shaft D mounted longitudinally of the machine. The sides of themachine areinclosed by lower cover plates E and E which are bolted inplace to the frames A.

The shaft 6 ends at the outer hub of the wheel 6 and said hub isprovided with a concentric seriesof sockets 8 engaged by a similarseries of studs 9 on the inner face of disk 10 which revolves in acircular hole 11 in the cover plate'E. 12 is a stuthng box bolted to theoutside of the plate E having its bore concentric with butof lessdiameterthan the said hole, so that the outer faceof the disk bearsagainst the inner end of the stuffing box, said disk being kept in closeresilient revolution of the shaft C. reciprocates The upper ends ofthestraps tending axially from the disk that a grease and contact withsaid 'stuiiing box by means of a helical spring 13- seated in a shallowbore i lin the end-of shaft C. 15 is a stub shaft exstuffing box andhaving a cam wheelie adjustably fixed on its outer end. It is evidentoil-tight joint is obtained between the cover plate E and the extensionof the shaft G, thus preventing the escape of lubricant.

I show the said cam 16 used for operating the shear mechanism to belater. described, butthe same may be used for actuating other of theelements of the machine, as may be found convenient.

F is a cross-head guide in the form of an.

annular sleeve which is bolted or otherwise secured to the tops of theframes A and serves I r and H which are bolted or otherwise secured tothe cross head-guide and the side frames. The lower edges of the coverplates and H fit down on and make a tight fit with the top edges or thecover be suitably journaled in boxes 23 formed on the abutting edges ofthe cover plates E and H. I V V l 'isrthe plunger or pressing elementpro M vided with an internal water chamber 2e.

Said ilun er is rovided with an axial con- 1 1. 1 tracted and threadedthroat 25 which forms the inlet port for said chamber, the outlet 7ports 26 of said chamber being of smaller size throat 25, and

I and arranged in concentric throat. 27 is the plunger shaft which isseries about said externally threaded and screwed into the whose axialbore forms the water inlet passage. The outer end of said shaft bore iscountersunk and threaded for the attachment of the flexible water inletpipe 28. An annularhead 29 is screwed onto the upper end'of the shaft27, having its lower end tapered to fit into the flared upper bore ofthe tubularplunger holder 30 whose bore fits loosely aboutthe shaft 27and whose lower end bears on the plunger 1. An eccentrically locatedport 31 through the head 29 connects with the annular space between theshaft and holder and has its outer end'countersunk'and threaded for theattachment of a flexible pipe 32. This forms the outlet for 10 throughthe prevent accidental which 'rooves are inclosed by the top coverplates 7 plates E and E, respectively. The driving shaft D may the waterfrom the chamber 24 through the ports 26. V

The holder '30ris exteriorly threaded and its lower end is screwed intoa collar 33. To

disengagement of the collar from the holder, 1 may flare the lowerextremity of the holder and the bore of the collar, as shown.

is a perimetral flange on the collar 33 which is adapted to engage frombelow an internal'fiange of the bottom spring plate 35 which bears onthe annular plunger follower 36 surrounding the plunger 1. The follower36 is provided with an internal top flange 37 which is engaged frombelow by the shoulder 38 of the plunger afterthe plunger starts itsascent, thus causing the follower to first lag behind and then ascendwith the plunger. 39 is an annular water passage in the follower 36which is intersected at one point by a cross partition 40 on either sideof which a threaded port extends through the outer wall of the tollowerto the water passage. lnto said ports are screwed the pipes 4:1, forwhich clearance is provided by one of the vertical apertures 42 in thebase of the cross-head guide F. water pipes as connect with the outerends of the pipes and the escape of water from the passage 39,thuscooling said follower.

. ie is a helical spring coiled about the plunger holder, its lower endbearing on the collar 33, while its upper end bears against the upperspring plate 45. A second helical spring 4E5 is coiled about thespring4:4, and preferably is of less strength than the latter, its lower endbearing on the spring plate 35 while its upper end bears on the springplate 45.

The upper spring plate 45 is a split spring annulus which loosely holderand is expanded into tight contact with the cross-head G by means of atapered and threaded plug l"? which is screwed into a tapered andthreaded hole vertically intersecting the splitin the ring L5. Thus byunscrewing the plug, the ring may be loosened from the cross-head andadjusted in relation thereto, and by screwing up the plug, the ring maybe rigidly fixed in position in the cross-head.

48 represents wing nuts the holder 30 to compress the helical springs. ITo preventthe holder 30 from turning in relation to the shaft 27, aleather or lzey 49 is seated in alined recesses cut in the plunger. andplunger holder i The mold carrier comprises a pair of endless sidechains made up of links 50 detachably pivoted together, as by means ofpins or other members 51. Thus the chains may be lengthened orshortened, as desired, by the introduction of or removal of the propernumber of links. The chains run in vertical screwed down on Flexible llfor the admission of water into encircles the plunger 7 planes relativeto the machine and are supported by means of pulley 52 journaled on stubshafts extending inwardly from the side frames A at either end of themachine. The horizontal portions of the chains between the pulleys 52run along the tops of the flanges 2 of the block 13 and preferablybeneath undercut ledges 53 in the faces of the side frames to preventbuckling. At the rear of the machine said chains are engaged from belowby pulleys 54 loosely mounted on stub shafts 55 extending from theframes A. Thus the chains are doubled up to encircle about half of theperimeter of the rear pulleys 52.

J represents a plurality of molds, preferably of circular form,pivotally mounted at regular intervals between the side chains. Saidmolds are provided with two diametrically opposed, radial trunnions 56which are journaled in bushings 57 which are substituted for the pinsfor connecting together the adjacent ends of the chain links, the endsof said bushings being upset to prevent their slipping out of engagementwith said links.

It is evident that the length of the chains and the number of moldsmounted thereon may be easily regulated as circumstancesmay require.

is a table or platen mounted horizontally on the block l3 between theframes A and beneath the pressirnq mechanism. Thus the molds move alongover said table beneath the pressing mechanism. The rear end of saidtable is curved downwardly, as, at 58, to form an incline to assis themolds in riding up onto the table as the chains move counterclockwise.

The method of imparting intermittent movement to the series of molds isas follows. 59 represents ears dependin from the Straps 9.1,horizontally pierced for pivotal attachment of links 60 whose other endsare pivoted to levers 61 intermediate of the latter. The lower ends oflevers 61 pivoted to blocks 62 sliding in seats 63.) on the outer facesof frai'nes A. while the upper ends of said lever are pivoted to bars64% sliding in grooves 65 on the outer feces of said frames. 66 is across-head whose ends are journaled in the ends of bars 64, and 67represents a pair of push rods adjustably mounted in said cross-head,whose free ends are curved downwardly and extend forwardly of themachine to engage the links of the carrier chains. the shaft C rotates,the cross-head. 66 reciprocates back and forward, and during its forwardmove ment the curved ends of the rods 6? engage the links of the chainsand move the counterclockwise, while during the rearward movement of thecross-head, said rods trail idly over the chains without moving thelatter.

The freeends of the push rods 6? en gage the links at the molds J, asshown in Fig. 3, and the forward movement the push rods moves the moldso engaged into the pressing position. The force is thus ap plied to themold, instead of to the links in termediate of the molds, so that wearin the links does not interfere with spotting the molds accurately underthe pressing position and any buckling of the carrier chains is avoided.The push of the rods on the molds may be regulated by adjusting the rodsin the cross head thus compensating for any wear and enabling the moldsto be accurately spotted.

The inwardly extending ends of the stub shafts 55 are flattened on topso that the inner end of the chute L maybe bolted there to, the chutebeing outwardly and down wardly inclined, as shown, and its inner endprotruding sufficiently to engage the molds as they rise to pass overthe pulleys 54, so that said molds are upset and their contents dumpedinto the discharge chute. By positioning the trunnions 56 above thecenter of gravity of the loaded mold, said molds retain their uprightposition throughout their travel except when engaged by the inner end ofthe discharge chute. Then the molds are upset and their contentsdischarged, but said molds immediately reverse into their normalposition, so that they rise up over the rear pulleys 52 with their moldcavities on top, ready to receive the gather of glass.

1 provide a shear mechanism to cut off the neck of glass when thegatherer deposits the molten glass in the mold before it moves into theforming position under the plunger mechanism. Thus l show a stationaryshear blade 68 mounted on top of the cover plate E and extending overthe path of the molds at the point where a mold stops before moving intothe torming position. 69 is a movable blade pivoted to blade 68 and openand closed at the proper intervals by means of a link 70 which connectsthe butt end of said blade with the upper end of a rocking lever 7-1pivoted to the cover plate E and having its lower end held in contactwith the perimeter of the cam 16 by a spring; 72. e

The shaft D is provided with a belt pulley 73 for the application ofpower, and said pulley is loosened or tightened on said shaft by meansof clutch mechanism 74. 75 is a hand crank device by means of which themachine may be turned over for adjustment or repairs. Said'hand crankdevice may be journaled in a bearing 7 6 preferably formed in anextension of the cover plate E.

The general operation of the machine is as follows:

Anytsuitable means or method of depositing glass in the molds beforethey are spotted in the forming position may he adopted. Thus automaticor semi-automatic gathering mechanism may he used, but I have shown, andwill hereafter describe the employment oi? a gatherer for that purpose.

.As the molds in turn reach thestation next before the pressing stationa gather or" molten glass is depositedin the waiting mold and neclr oi?the glass sheared by the closing of the shear blades. of the carrier theloaded mold is positione der the pressing mechanism, which de- (ds, thefollowing 36 first seating on the top oi'the mold and covering the outerrim of the mold cavity. T he plunger l then descends into the moldcavity and presses the glass into the desired form. When the crossheadis: starts to ascend. the plunger 1 la gs be- 1 hind, remaining in themold until the spring r as already described, in the ring as strikesagainst the nuts ddsaid ring having descended out of contact with saidnuts owing to the compression of helical springs in forcing the plungerand plunger follower into engagement with the mold.

The period'between the beginning or the upward movement Of thecross-head and the en a ement of the nutsb the rin dew a L p b ternnnesthe dwellwor the plunger in the mold. said nuts 18 the plunger l beginsto rise'out of the mold, but the follower 86 remains seated upon themold until the shoulder 38 on the plungerhngages from below the flange37 on the follower, thus causing the follower to rise with the plunger.The lag t tl f ll l tl l oi ie onowci mount '19 plun er enales the iormer to hold the pressed were in the mold until the plunger is strippedor disengaged therefrom, thus preventing the pressed ware from risingout of the mold with the plunger. The tension of the springs ie and 46determines the resilient forcewith which the plunger and follower engagethe mold, SlltlfOlCQ being adyusted by means 0; the

nutsel, so that the design of mold in use will be properly filled by thedescent of the q plunger into the same. 'hus a deep mold will require'more force vto fill will a shallow mold.

If the spring ring 4-5 were not adjustable, cross-head G, the screwing,down of the nuts e8 to increase the compression of thehelical springswould serve to elevate the plunger and follower. in

suit various heights or characters o'fmolds relation to the cross-head,and likewise the unscrewing of said nuts to reduce the comnressionof thehelical springs would depress the plunger and follower in relation tothe cross-head, thereby rendering the proper positioning or the pressingmechanism toimpossible. By first adjusting the nuts 4.8

on the holderuBO so that the desired compreshelical springs, and thension is given to the thus loosening unscrewing the plug 47, and

By the next movement When said ring as strikes against varied by fromthe chain links and molds. Where the after bllG pressing operation, themold now containing the pressed ware passes forwardly,'and then stop bystep downwardly and then upwardly, alw ys retaining its upright positionthroughgravity, until it en- 'ages the chute L which upsetsthe mold andeuinps its .contentsinto the chute, the mold then rerighting as itapproaches and mounts the table lI oncemore. 1 p

The forward movement of the molds takes place during the latter part ofthe upward movement or" the pressing mechanism and during the first parto1 its downward movement, thus clearing the molds of the pressingmechanism during the movement of the molds.

As stated the number of molds may be he addition to or suhstractionlength of the chains causes'them to loop down to a relatively greatdegree below the machine, there might be a tendency for the descendingmolds to strike against the assending molds or. or the chains to swinglaterally and strike the sides of the machine.

I avoid this difficulty-by using a stirrup M whose cross bar'77 ispreferably weighted and whose upwardlyextending legs are .out-

side er the carrier chains; The upper ends or said legs are providedwith inwardly extendingstuh shafts; upon which are journaled the rollers78 which ride upon the side chains and thus support the stirrup. Thisprovision lengthens the chord of the arc of the depending chain loopsand prevents the v molds interfering with each other, and the .weight ofthe stirrup keeps the chains and molds in proper vertical alinement. Theroller riding upon the'chains prevent the stirrup mounting upwardlythrough the movement of the chains toward the discharge chute.

My novel method of mounting the machine in connection with the the glasstank or other container of molten glass is particularly advantageous.The machine tank in such a manner that the gatherer stands facing thetank with the machine in front of him so t at the required movements, tointroduce a supply of glass and deposit such supply into the waitingmold to be sheared fromthe purity, are reduced to a minimum. Thus thethe ring 45 up or down in the his punty into the furnace for is mountedon the front or extension of the lower cover plate E is provided withstout hook members 79 which hoolrover a horizontal beam or support 80011the front of the glass tank N. Thus the machine which is of smallcompass and compact construction is supported in place with the moldinto which the glass is to be placed directly in front of the ring hole81. I prefer to provide a sheet metal shield which is tached to thefront of the furnace about the opening-81 and whose sides and top areinclosed, said shield extending over the machine table K and the stationassumed by the mold for the gather operation. The top of said shield iscurved downwardly and forwardly to protect the face of the gather-er,who stands at P, Fig. 13, and is provided with a vertical slot 82through which the gatherer inserts his punty to obtain glass from thetank and deposit it in the mold. Thus the gatherer is protected from theheat and glare of the furnace and the glass is prevented from chillingwhen it is placed in the mold. The gatherer can work much more rapidlywiththis arrangement as he does not need to move his feet and the movement of the punty is reduced to a minimum.

The cover plates may be provided with oil inlet ports 88, closed byscrew plugs, so that grease or oil may be introduced between the coverplates and the side frames, thereby providing a bath of lubricant inwhich the moving parts of the machine operate. As shown in F ig. 3, Iprefer to form one or more of the bolts 1, which hold the side framesito theblock B, as hollow cylinders whereby a cross equalizing passagefor lubricant between the two sides of the machine is formed, for thebetter circulation of the lubricant.

The advantages of my improved machine are manifold. Among them may bementioned the following The machine isrelatively small and very compact.It is easily portable and therefore can be shifted from one furnace ortank to another as factory requirements may dictate. Its actuating partsare inclosed in baths of lubricant, thus facilitating operation andreducing wear. Molds for producing any character of pressed ware may beused in the machine-and the number of the molds mounted in the carriermay be reduced or increased without otherwise changing the machine orimpairing the efiiciency. The method of mounting the machine is suchthat a single operator or gatherer is required, no boys or assistantsbeing needed. If mechanical gathering means he substituted for manualgathering the operation of the machine becomes entirely automatic. Thepressing mechanism may be adjusted for the proper forming of the glassin any character of mold, whether shallow or deep.

The molds remain upright throughout their travel, except when upset bythe discharge the molds enables the molds to be at all times accuratelyspotted under the pressing mechanism and preventsunnecessary wear.

on the carrier chains.

Although, for the sake of clearness, l have minutely described the.embodiment of the principles of my invention illustrated in thedrawings, I do not limitniys'elf thereby, but claim broadly:

1. In a machine for manufacturing articles of glass, the combination offorming means, a carrier. intermittently revolving in a vertical planebeneath said forming means, and a plurality of molds pivotally mountedon said carrier and adapted to be presented in turn to said formingmeans, the pivotal axes of said molds being above their centers ofgravity whereby said molds normallyre tain their upright position.

2. In a machine for manufacturing articles of glass, the combination offorming means, a flexible carrier intermittently revolving in a verticalplane beneath said forming means, and a plurality of molds pivotallymounted on said carrier and adapted to be presented in turn to saidforming means, the pivotal axes of said molds being above their centersof gravity whereby said molds normally retain their upright position.

8. In a machine for manufacturing articles of glass, the combination offorming means, a carrier intermittently revolving in a vertical planebeneath said forming means. aplurality of molds pivotally mounted onsaid carrier and adapted to be presented in turn to said forming means,and means intercepting the path of said molds and adapted to upset themin turn for the discharge of their contents, the pivotal axes of saidmolds being above their centers of gravity whereby said moldsautomatically right themselves after the discharge of their contents.

4. In a machine for manufacturing articles of glass, the combination offorming means, a flexible carrier revolving in a vertical plane beneathsaid forming means, a plurality of molds pivotally mounted on saidcarrier and adapted to be presented in turn to said forming means, andmeans intercepting the path of said molds and adapted to upset them inturn for the discharge of their contents, the pivotal axes of said moldsbeing above their centers of gravity whereby said molds automaticallyright themselves after the discharge of their contents.

5. In a machine for manufacturing articles of glass, the combination offorming means, a horizontal support beneath said forming means, aflexible carrier, intermittently revolving in a vertical plane,traversing said support, and a plurality of molds pivotally mounted onsaid carrier and adapted to be presented in turn on said support to saidforming means, the pivotal axis of said molds being above their centersof gravity whereby said molds normally retain their upright positionduring their travel.

6'. In a machine for manufacturing articles of glass, the combination offorming means, a horizontal support beneath said forming means, aflexible carrier, intermittently revolvingin'a vertical plane,traversing saidv support, a plurality of molds pivotally mounted in saidcarrier and adapted to be presented in turn on said support to saidforming; means, and means intercepting the path of said molds beneathsaid support 7 adaptedto upset said molds for the discharge of theircontents, the pivotal axes of said molds being above their centers ofgravity whereby said molds automatically right themselves beforemounting said sup port.

I. In a machine for manufacturing articles of glass, the combination offorming means, a pair of endless chains revoluble in vertical planesbeneath said forming means, a plurality of molds mounted on said chainsand adapted to be presented in turn iLO'SELlCl forming means, a powerdriven reciprocating member, and push rods mounted on said member andadapted to engage and revolve said chains intermittently.

8. In a machine for manufacturing articles of glass, a horizontalsupport beneath said formingmeans, a pair of endless chains revolublymounted in vertical planes, the upper portions of said chains traversingsaid support, a plurality of molds pivotally mounted on 'saidchains, apower-driven reciprocating member, and push rods mountedon said memberand adapted to engage and revolve said chains intermittently.

9. In; a machine for manufacturing articles of glass. the combination ofa support, a cross-head slidingly mounted on said sup port, a pressingplunger, an annular plun- -,ger follower, and a pair of concentichelical springs having their one ends hearing against saidcross-headwhile their other ends bear against said plunger and said follower,respectively. I p

V 10. In a machine for manufacturing articles ofglass, the combinationof a support, a cross-head slidingly mounted on said support,a springplate mounted on said crosshead,a plunger holder extending through saidplate, a plunger and a plunger follower mounted on one end of saidholder, a nut screwed on the other end of said holder against said,plate, and a pair of helical springs interposed between said plateandthesaid plunger and follower, respectively.

11. In a machine for manufacturing articles of glass, the combination ofsupport,

a cross head slidingly mounted on said support, a spring plateadpistably mounted on cross-head, a plunger holder r n s0 owed on 152.in a machine cles of lass,the combination of asupport, a s 11 Mlslidingly mounted on said support, a spring plate mounted on the crosshead, a plunger holder extending through C g.

plunger anda plunger follower one end of said holder, a nut the otherend ofsaid holder said licucalsprings coiled about said holder betweensaid spring plate and said plunger and holder, respectively.

a cross-head slidingly mountedon said sup port, spring plate adjustablymounted on said cross'head, a plunger holder extending through saidplate, a plunger and a plunger follower mounted on one end of saidholder, a nut screwed on the other end of said holder id. in a machinefor manufacturing arti cles of glass, the combination of a support, a(rical cross-head. slidingly mountedon SulQl support, an annular springplate mount.- ed in the bore of said cross-head, a plunger holderextending through said plate, a plunand plunger follower mounted on oneend of said holder, a nut screwed on the other end of said holderagainst saidplate, a1 1 a pair of concentric helical springs coiledabout said holderbetween said plate and said plunger and follower,respectively.

in a machine for manufacturing articl s of glass, the combination of asupport, a cylindrical cross-head slidingly mounted in said support, asplit spring ring inserted in the bore of said cross-head, aplungerholder extending through said ring, a plunger a plunger follower mountedon one end of said holder, a nut screwed on the other end of said holderagainstsaid ring, a pair of concentric helical springs coiled about saidholder and bearing against said ring and said plunger and follower, re-

spectively, and means for expanding said ring to lock said ring intofixedengagement plate, and a pair of concentric In a machine formanufacturing articles of glass, the combinat on of a support,

extending said plate, a plunger and a plunger said cross-head, a pair ofcams on said shaft, and eccentric straps mounted on said cams andpivotally attached to said cross-head.

17. in a machine for manufacturing articles of glass, the combination ofa support provided with a longitudinal aperture, a cross headreciprocating in said support, a pressing plunger depending from saidcrosshead, a plunger follower depending from said cross-head andsurrounding said plunger, said follower being provided with a fluidpassage, and an inlet pipe and an outlet pipe, extending through theaperture in said support into the said passage of said follower.

18. in a machine for manufacturing arti else of glass, the combinationof a pair of spaced apart side frames, a mold carrier revoluble in avertical plane between said side frames, forming mechanism reciprocatingin a vertical plane between said side frames, a driven shaft journaledtransversely in said side frames with its ends protruding therefrom,operative connections between the ends of said shaft and said carrierand said forming mechanism, r spectively, and cover plates inclosingsaid con nections.

19. In a machine for manufacturing articles of glass, the combination ofa pair of spaced apart side frames, a mold carrier revoluble in avertical plane between said side frames, forming mechanism reciproeatingin a vertical plane between said side frames, a. driven shaft journaledtransversely in said side frames with its ends protruding therefrom,operative connections between the ends of said shaft and said carrierand said forming mechanism, respectively, cover plates inclosing saidconnections, shearing mechanism, and operative connection between oneend of said shaft and said shearing mechanism, said last namedconnection extending through an oil-tight,

bearing in the cover-plate.

20. In a. machine for manufacturing arti cles of glass, the combinationof a pair of spaced apart side frames, a mold carrier revoluble in avertical plane between said side frames forming mechanism reciprocal ina vertical plane between said side frames, a shaft journalcdtransversely of said machine having its ends protruding beyond said sideframes, operative connection be tween the ends of said shaft and saidcarrier and said forming mechanism, respectively, and a lubricant bathfor said operative connection.

21. The combination with a glass tank provided with a ring hole, ofglass forming machine, supported on the front of the tank and having acarrier revoluble in re lation to the machine, a plurality of moldsmounted on said carrier, and means for revolving said carrierintermittently to bring said molds in turn in front of said ring hole toreceive molten glass prior to the forming operation.

22. The combination. with glass tank provided with a ring hole, of aglass forming machine adjacent to said tank and having a revolublecarrier, a plurality of molds mounted on said carrier, means forrevolving said carrier, intermittently to bring said molds in turn infront of said ring hole to receive molten glass, and a shieldsurrounding said ring hole and extending outwardly to cover the moldswhen the latter are in the receiving position.

23. The combination with a glass tank provided with a ring hole, of aglass forming machine supported on the front of said, tank and having arevoluble carrier, a plurality of molds mounted on said carrier, meansfor revolving said carrier intermittently to bring said molds in turn infront of said ring hole to receive molten glass, and

shield surrounding said ring hole and extending outwardly to cover themolds when the latter are in the receiving position.

2%. The combination with a glass tank provided with a ring hole, of aglass form ing machine supported at the front of said tank, and a shieldover said ring hole and extending forwardly from said tank over saidmachine to protect the gatherer from the heat of said ring hole.

25. The combination with a glass tank provided with a ring hole, of aglass forming machine supported at the front of said tank, and a shieldover said ring hole and extending forwardly from said tank over saidmachine, said shield being provided with an aperture at the front forthe insertion of the gatherers punty.

Signed at Swissvale, Pa, this 12th day of December, 1918.

.WILLIAM J. MILLER.

